How much does a 1.50 to 1.99ct J SI2 natural oval diamond cost?

As of November 2026, 1.50 to 1.99ct J SI2 natural oval diamonds typically cost €2,549 EUR to €7,290 EUR, with a median price of €4,337 EUR. There are currently 585 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI2 oval diamond?

About 37% of these diamonds are available at multiple retailers, with an average price spread of 55%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J SI2 Natural Oval

Quick answer

As of November 2026, there are 585 natural oval diamonds with J color and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run €2,549 EUR to €7,290 EUR, with a median of €4,337 EUR. At least 54 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 55%. Half of all listings fall between €2,029 EUR and €3,493 EUR per carat. The same specification in lab grown form lists at a median of about €1,177 EUR per carat. Over the last 30 days the median price moved -1.5% and the number of listings moved +8.0%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Oval natural stones in the index: 2,655 USD per carat, +10.2% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: November 2026

Available

585

Lowest Price

€1,385 EUR

Highest Price

€14,491 EUR

Average Price

€4,674 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

36.6%

Price Spread

54.7%

30-Day Price Trend

-1.5%

30-Day Supply Change

+8.0%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,989/ct

10th Percentile

$1,743

Median

$2,989

90th Percentile

$4,916

Score Distribution

1.7K diamonds scored across 4 quality tiers

Excellent

207 (12.5%)

Very Good

374 (22.5%)

Good

335 (20.2%)

Average

745 (44.9%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

J I1I1 inclusions are not visible without magnification

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Lab-Grown J SI2Same specifications, lab-grown origin

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1